Wrist band for watches



April 1958 R. SCHMITT WRIST BAND FOR WATCHES Filed Feb. 15, 1955 UnitedStates O WRIST BAND FOR WATCHES Ren Schmitt, Geneva, SwitzerlandApplication February 15, 1955, Serial No. 488,390 Claims priority,application Switzerland February 17, 1954 7 Claims. (Cl. 224-4) Myinvention has for its object a wrist band for watches, constituted bytwo rigid arcuate arms of which at least one is pivotally secured to thewatch case.

According to my invention, the wrist band arms are carried by anattachment adapted to extend underneath the watch and to which aresecured two U-shaped members each arm of which is providedat its endswith means such as slotted members or spheres for engagingthe cross barof a lug on the watch case. 4

I have illustrated by way of example in accompanying drawings twoembodiments of a wristband for a watch according to my inventiontogetherwith amodification thereof. In said drawings:

Fig. l is a plan view of a first embodiment of a wrist band to which issecured a watch case providedwith lugs for holding said wrist band. i

Fig. 2 is an elevational view of the same embodiment.

Fig. 3 is again a plan view of the same embodiment associated with awatch case provided with a perforated bearing member.

Fig. 4 is a view of a detail as seen from underneath.

Figs. and 6 are partial plan views of a furtherembodiment of the wristband to which is secured a watch case provided with lugs in the case, ofFig. 5 and with perforated members in the case of Fig. 6.

Fig. 7 is a view from below of a detail of said embodiment.

Fig. 8 is an elevational view of said detail.

Fig. 9 is a view, partly in cross-section, along line IXIX of Fig. 3.

In the embodiment illustrated in Figs. 1 to 4, the wrist band includestwo rigid arcuate arms 1 pivotally secured each at 2 to an intermediatepiece 3; one of said intermediate pieces 3, that shown on the left handside of Fig. 2, carries a resilient metal strip 4 adapted to engage theunderside of the watch case and inside which are provided transverseopenings 5 as shown in Fig. 4, whereas the other intermediate member 3carries a non-perforated resilient strip 6 engaging said transverseopenings 5. By reason of this arrangement, the two blades 4 and 6 mayslide with reference to each other, which allows adjusting the distancebetween the two intermediate pieces 3 in accordance with the size of thewatch case to be secured to the wrist band; furthermore and by reason ofthe resiliency of said strips, the wrist band may be deformed when it isdesired to secure it to the watch. Lastly the friction exerted by thetwo cooperating strips prevents any untimely shifting between the twostrips with reference to each other.

Each intermediate piece 3 carries a U-shaped member 7 the outer ends ofwhich are each rigid with a part spherical section 8 provided with atransverse notch 9. These spherical sections 8 engage through theirnotches 9 the bars 10 forming part of the lugs to either side of thewatch case 11.

In Figs. 3 and 9 the wrist band is shown, as mounted m; a watch 12,provided with bearings constitutedby 2 recessed members 13. By reason ofthe elasticity of the arms of the U-shaped parts 7, the sphericalsections 8 engage partlyinside the recessed ends of the bearings 13 andare held fast therein. Thus, although primarily intended for use with awatch case having cross-bars for its attachment, it may be secured towatch cases of a different type provided with hingemembers constitutedby transversely recessed bearings.

In the modification illustrated in Figs. 5 to 8, the U- shaped partcarrying the spherical sections 8 is constituted by two arms 14pivotally secured together at 15.

The pivotal axis is constituted by the stem 16aof a' screw 16 (Fig. 8)screwed into an intermediate member 17 to which the correspondingarcuate arm of the wrist band which is not illustrated'is pivotallysecured at 18. The spacing between the spherical sections may bemodified in keeping with the thickness of the bearing members 13provided on the watch case (Fig. 6) or with the breadth of the lugcross-bar 10 similarly provided on the watch case (Fig. 5).

The spherical sections 8 in Figs. 5, 7 and 8 are provided each, as inthe case of the first embodiment disclosed, with a transverse notch 9adapted to engage the transverse bar 10 of the lug on the watch case.

It should be remarked that clearances 19 are formed in each intermediatepiece 17 to allow the arms 14 of the U-shaped part to extend thereinwith some play while said clearances, are slightly less deep than thethickness of the arms so that the screw 16 may reliably lock said armsin position.

opposite sides ofsaid case, yielding metallic interconnected meanscarried by the corresponding intermediate members to interconnect thelatter on the outside of the lower surface of said watch case, abifurcated part carried by each intermediate member near the point atwhich the latter is pivotally secured to the corresponding arcuate armand means carried by each end of each bifurcated part and adapted toengage a watch case cross-bar.

2. In a wrist-band adapted to be secured to a watch case including lugcross-bars at each end of said case, the

combination of two-rigid arcuate arms, each said arm being pivotallysecured to an intermediate member on opposite ends of said case,yielding metallic interconnected means carried by the correspondingintermediate members to interconnect the latter on the outside of thelower surface of said watch case, a slightly yielding bifurcated partcarried by each intermediate member near the point at which the latteris pivotally connected to the corresponding arcuate arm and sphericalsections rigid with the outer ends of the yielding bifurcated partprovided with transverse slots, said spherical sections being adapted toengage through said slots the cross-bar of the lug on the watch casewhich faces the corresponding bifurcated part.

3. In a wrist-band, adapted to be secured to a watch case including lugcross-bars at each end of the case, the combination of two rigid arcuatearms, each said arm being pivotally secured to an intermediate member onopposite ends of said case, yielding metallic interconnected meanscarried by the corresponding intermediate members to interconnect thelatter on the outside of the lower surface of said watch case, abifurcated part in eluding two arms pivotally secured to eachintermediate member near the point at which the latter is pivotallyconnected to the corresponding arcuate arm, a screw ex- I tending alongthe pivotal axis of the two arms of each 3 bifurcated part and.adaptedto lock said last-mentioned arms in the desired angular settingand means, carried by each end of each bifurcated part and adapted toengage a watch case crossbar.

4. In a'wrist band adapted tobe securedsto a watch case including lugcross-bars at each end of saidcase, the combination of two rigid arcuatearms, each said arm being pivotally secured to an, intermediate memberon opposite ends of said case, yielding metallic interconnected meanscarried by the corresponding intcrmediate members to interconnect thelatter onsthe outside of the lower surface of said watch case, aslightly yielding bifurcated part including two arms pivotally securedto the intermediate member near the point at which the latter ispivotally connected to the corresponding arcuatearm, a screw extending,along the pivotal axis of the two arms of eachbifureated'part andadapted to lock said last-mentioned arms in the. dated angular settingand spherical sections rigid with the outer .ends of the bi.- furcatedpart. provided, with movable transverse slots, said sections beingadapted to engage through said slots in said spherical sections thecross-bar of the lug; on the watch case which faces the correspondingbifurcated part.

5. In a wrist-band adapted; to be secured to a watch case including lugcross-bars at each end of said case, the

combination of two rigid arcuate arms, each of said arms being pivotallysecured ,to an intermediate member on opposite ends of said case, aresilient metal strip carried by each intermediate member and: adaptedto extend on the outside ofthe lower surface of the, watch case to becarried by the wrist-band, one, of the strips being provided withtransverse. openings for frictional engagement by the other strip, abifurcated part carried by each intermediate member near the point atwhichthe latter is pivotally connected to the corresponding arcuate armand means carried by each end of 'each bifurcated part and adapted toengage a watch case cross-bar.

6. In a wrist-band adapted, to be secured? to a watch case includinglug, cross-bars at opposite ends-of saidcase, the combination of tworigid arcuate arms, each. said arm being pivotally secured toanintermediate member at said opposite ends, a resilient metal stripcarried by each intermediate member and adapted to extend on the 4outside of the lower surface of the watch case to be carried by thewristband,- one of the strips being provided with transverse openingsfor frictional engagement by the other strip, a bifurcated part carriedby each intermediate member near the point at which the latter ispivotally connected torthe corresponding arcuate arm and sphericalsections rigid with the outer ends of each bifurcated part provided withtransverse slots movable relative to each other, said sections beingadapted to engage through the slots in said spherical sections thecrossbar of the ing on the watch case which faces the correspondingbifurcated part.

7. In a wrist band adapted to be secured to a watch case including atransverse attaching cross-bar across opposite ends of said case, incombination: two rigid arcuate arms, each said arm being pivotallysecured to an intermediate member on opposite sides of said case,resilient metallic attachment members connected to each saidintermediate member and adapted to extend under the lower surface ofsaid case slidably and interconnecting said intermediate members at afinite distance from each other; two. angularly spaced arms carried byeach said intermediate member and forming the end of each saidattachment member near the point at which said intermediate members arepivotally secured to the cor responding arcuate arm, and means carriedby the ends of each angularly spaced arm and adapted to engage thecorresponding watch case cross-bar.

References Cited in the file of this patent UNITED STATES PATENTS2,009,484 Dinhofer July 30, 1935 2,284,582 Langer May 26, 1942 2,505,044Heinrich Apr. 25, 1950 2,513,892 Pile July 4, 1950 2,612,302 Dinstman .aSept. 30, 1952 FOREIGN PATENTS 851,954 France Oct. 16, 1939 705,065Germany Apr. 17, 1941 979,593 France Dec. 13, 1950 823,669 Germany Dec.6, 1951 1,056,549 France Oct. 21, 1953'

